The NFL scouting combine kicks off Wednesday, and Scouts Inc.'s Todd McShay tells us who's feeling the pressure and which players have the most to gain.

The 2008 NFL scouting combine officially kicks off Wednesday with offensive linemen, tight ends, kickers, punters and specialists arriving in Indianapolis. The final group -- defensive backs -- shows up Saturday. Kickers and punters will work out at the RCA Dome on Friday. Workouts for position players begin Saturday with offensive linemen and tight ends, and finish Feb. 26 with cornerbacks and safeties.

As players make their final preparations and head for Indianapolis, here's an early look at some prospects with the most on the line: